并列题名：Research on heterogeneity and variability of literary theory across civilizations Research on heterogeneity and variability of literary theory across civilizations 并列题名：Research on the frontier issues of literary theory in the 21st century 并列题名：Research on load standard and reliability of light wharf structures 并列题名：Research on the theory and system of ecological civilization 并列题名：Research on theory and practice of rural revitalization 并列题名：Research on stability of gravity dam under severe cold conditions